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Tylaska’s halyard shackles are machined from aerospace grade aluminum plate and hard-coat anodized to military specifications for superior strength and durability. A captive 17-4PH stainless steel pin makes for trouble-free operation. The machined thimble surface is suitable for permanently spliced fixed halyards.
2:1 Halyard Shackles
Using a high strength composite sleeve bearing, Tylaska has created true 2:1 halyard shackles capable of handling the full rated load of the shackle. The size was made to fit standard sail headboards without adding any unnecessary weight. Strength was optimized by computer and then verified by numerous destructive tests.